# Problem: The rate constant for the decomposition of N 2O(g) is 1.1×10−3 M-1 sec-1. Assuming that the initial concentration of N2O(g) is 0.2M, which of the following statements is true? a) The reaction is zeroth order and the half life is 90.9 seconds b) The reaction is first order and the half life is 90.9 seconds c) The reaction is first order and the half life is 630 seconds d) The reaction is second order and the half life is 4545.5 seconds e) The reaction is second order and the half life is 630 seconds

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###### Problem Details

The rate constant for the decomposition of N 2O(g) is 1.1×10−3 M-1 sec-1. Assuming that the initial concentration of N2O(g) is 0.2M, which of the following statements is true?

a) The reaction is zeroth order and the half life is 90.9 seconds

b) The reaction is first order and the half life is 90.9 seconds

c) The reaction is first order and the half life is 630 seconds

d) The reaction is second order and the half life is 4545.5 seconds

e) The reaction is second order and the half life is 630 seconds

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Identifying Reaction Order concept. If you need more Identifying Reaction Order practice, you can also practice Identifying Reaction Order practice problems.

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Based on our data, we think this problem is relevant for Professor Mathias' class at BROOKLYN CUNY.